Window ventilator



June 27, 1933. s. H. SEWARD WINDOW VENTILATOR Filed Oct. 13 1930 Inven'lor:

d F S L w n M HM h a r. a s

Patented June 27, 1933 PATENT, OFFICE SARAH H. snwann, or MINNEAPOLIS, MINNESOTA WINDOW VENTILATOR Application filed October 13, 1930. Serial No. 488,197.

My invention relates to window-ventilators, and an object is to provide a, device adapted to be placed adjacent thewindow opening so that when the Window 1s partly raised, air may flow into the room without producing a direct draft and entrance of rain and snow will be prevented. Another object is to provide a device of this character which may be readily applied and removed m and which is so constructed and arranged that it may be positioned with its lower edge resting against the shoulder between the windowledge and window-sill or may be posltioned with its lower edge resting upon the window ledge so that in the latter case, the

window may be completely lowered without removing the device.

The full objects and advantages of'my invention will appear in connection with the detailed description thereof, and the novel features of my inventive idea will be particularly pointed out in theelaims.

In the accompanying drawing which illustrates a. practical embodiment of, my invention;-

Fig. 1 is a view in vertical section showing my device in the position which it occupies when the window is closed. Fig. 2 is'a similar view showing my device in the posi-- tion which it occupies when the window is partly open for ventilation. Fig.3 is a view in horizontal section on the line 33 of Fig.

1. Fig. 4 is a fragmentary view in horizontal section on the line 44 of Fig. 1. Fig.

5 is a view corresponding to Fig. 4exeept that thedeviee has been raised for removal. My invention is shown in connection with an ordinary window having a lower sashlO slidable in slideways 12, a 'sill 14 and a ledge 16, this ledge being higher than the sill whereby the usual shoulder 18 is provided. The sash 10 is, of course, provided with glass which is indicated by the numeral 20. My device is constructed of sheetlike material, preferably sheet metal and includes two end members 22 and 24 between which extends This wall includes a mema front wall.

ber 26 attached to the end member 22 and in- I eludes a member 28 attached to the end mem- 59 her 24. The front edges of the end members ,bers. at the bottom.

22 and 24 are shaped in the form ofa reverse curve with the narrow portions of these mem- The wall members 26 and'28 are shaped into the same reverse curve A so that the ends thereof fit' respectively upon "5 the reversely curved edges of the end members. The front wall therefor is ofiset inwardly at its portion toward'the room, this upper portion extending substantially 'ver- M tically. In order to adjust the'deviee for different windows and also to permit ready application and removal of the device from the window structure, the two members 26 and 28 are telescopically engaged with each r v other, for which purpose the upper'and low- 5 er edges of'the member 26 are turned over as indicated at 30 and 32 respectively whereby slideways are provided for the upper and lower edges of the member 28.

\ The end members are each provided with a vertically disposed pair of slots 34 and 36 terminating at their lower ends in enlargements 38 and 40. Headed members such as screws 42 having heads 44 are driven into the H frame at both sides of the windowopening. The 'members 42 are so disposed that'their heads 44 may pass through the enlargements 38 and 40 and upon sliding the device down wardly the shank members 42 will enter the V slots 34 and 36, it being noted that these slots eirtend Vertically and have a length considerably greater than the distance across the enlargements 38 and 40. It will also be noted that the width of the slots 34 and 36 is somewhat greater than the diameter of the shank members 42 but is less than the diameter of the heads 44.

- "The operation and advantages of my invention will-be understood in connection with h the foregoing description In order to apply the device, the lower sash 10 is lifted as shown in Fig. 2 and the heads 44 are passed through the enlargements or openings 38 and 40 respectively by sliding the two wall members toward the window frame. The device is then slid downwardly sothat the shanks 42 enter the slots 34, the lower end of the front wall of the device then resting against the shoulder 18. The sash 10 may now be slight- 1y lowered and will then wedge against the edges of the end members 22 and 24 and thereby prevent rattling of the device even when a strong wind is blowing. It will be noted that since the slots 84 and 36 are somewhat wider than the shanks 42, a slight canting of the device is permitted. Due to the vertical direction of the upper portion of the front wall of the device, the air entering the room will not pour over the upper edge of the front wall but will be deflected upwardly. Therefore a person sitting near the window will not be subjected to draft produced by the air which enters the room. Furthermore, the vertical positioning of the upper portion of the front wall of the device will prevent rain from spattering into the room and will prevent snow from drifting into the room. When it is desired to completely lower the window, the device is slid upwardly into the position shown in Fig. 1 so that the lower end of the device rests upon the ledge 16. On account of the length of the slots 34 and 36, the heads 44 will hold the device in the position shown so that it does not have to be removed from the window. However if it becomes desirable to remove the device as for cleaning purposes, then the device is slid still further upwardly until the openings 38 and 40 register with the heads 44 whereupon as will be understood from Fig. 5, the end members 22 and 24 may be pushed toward each other and the device quickly removed.

I claim:

1. A .window' ventilator comprising two end members, a front wall extending between said end members with the lower edge of said wall adapted to engage the shoulder between the window ledge and window sill and with the upper portion of said wall deflected inwardly, and means for attaching the device to the window frame with the outer edges of said end members occupying a canted position for wedging engagement by the lower member of the window sash.

2. A window ventilator comprising two end members, a front wall including two telescoping members extending between said end members with the lower edge of said wall adapted to engage the shoulder between the window ledge and window sill and with the upper portion of said wall deflected inwardly, and means for attaching the device to the window frame with the outer edges of said end members occupying a canted po sition for wedging engagement by the lower member of the window sash.

3. A window ventilator comprising two end members, a front wall extending between said end members with the lower edge of said wall adapted to engage the shoulder between the window ledge and window sill and with the upper portion of said wall deflected inwardly, and means for attaching the device to the window frame, the outer edges of said end members when the device is thus positioned extending inclinedly from a position at their upper ends outside the window slideways to a position at their lower ends lying within the range of said slideways whereby the lower member of the window sash is adapted to have wedging engagement with said edges.

4. A window ventilator comprising two end members, a front wall including two telescoping members extending between said end members with the lower edge of said wall adapted to engage the shoulder between the window ledge and window sill and with the upper portion of said wall deflected inwardly, and means for attaching the device to the window frame, the outer edges of said end members when the device is thus positioned extending inclinedly from a position at their upper ends outside the window slideways to a position at their lower ends lying within the range of said slideways whereby the lower member of the window sash is adapted to have wedging engagement with said edges.

5. A window ventilator comprising two end members, a front wall including two telescoping members extending between said end members with the lower edge of said wall adapted to engage the shoulder between the window ledge and window sill and with the upper portion of said wall deflected inwardly, and headed fasteners secured to the window frame at both sides of the window opening, said end members containing substantially vertically-disposed slots through which said fasteners pass for supporting the device in. such position that the outer edges of said end members will extend inclinedly from a position at their upper ends outside the window slideways to a'position' at their lower ends lying within the range of said slideways whereby the lower member of a window sash is adapted to have wedging engagement with said edges. y

In testimony whereof I hereunto afflx my signature.

SARAH H. SEWARD. 

